Eagle BBC 4340 Forged Crank 4.750 Stroke Crankshaft — Fits Big Block Chevy

SKU: BBPG_450247506600
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Eagle

Eagle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eagle lineup with fast shipping and expert fitment support — order with confidence.

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Eagle 4340 Forged Crankshaft for Big Block Chevy

Take your Big Block Chevy to the next level of performance with the Eagle 4340 Forged Crankshaft. With a substantial 4.750-inch stroke, this crankshaft is designed for serious engine builders who demand maximum displacement and torque. Constructed from premium 4340 forged steel, this crankshaft provides the structural integrity required to handle high-horsepower applications without sacrificing reliability.

Technical Specifications

  • Application: Big Block Chevy (BBC).
  • Stroke: 4.750-inch stroke.
  • Material: 4340 forged steel.
  • Balance: Internal balance design.
  • Seal Compatibility: 2-piece rear main seal.

The Eagle 4340 forged crankshaft is meticulously machined to ensure tight tolerances and perfect fitment. By choosing this forged component, you are investing in a rotating assembly that can withstand the intense cylinder pressures of high-compression or power-adder builds. The internal balancing reduces rotational mass vibration, which is critical for engine longevity at high RPMs. This crankshaft is an essential upgrade for any Big Block Chevy build intended for drag racing, pulling, or high-performance street use. Its robust design ensures it can handle the stress of aggressive driving, providing you with peace of mind on the track. For the best selection of engine components and expert advice, visit GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Eagle

Eagle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eagle lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Eagle 4340 Forged Crankshaft for Big Block Chevy

Take your Big Block Chevy to the next level of performance with the Eagle 4340 Forged Crankshaft. With a substantial 4.750-inch stroke, this crankshaft is designed for serious engine builders who demand maximum displacement and torque. Constructed from premium 4340 forged steel, this crankshaft provides the structural integrity required to handle high-horsepower applications without sacrificing reliability.

Technical Specifications

  • Application: Big Block Chevy (BBC).
  • Stroke: 4.750-inch stroke.
  • Material: 4340 forged steel.
  • Balance: Internal balance design.
  • Seal Compatibility: 2-piece rear main seal.

The Eagle 4340 forged crankshaft is meticulously machined to ensure tight tolerances and perfect fitment. By choosing this forged component, you are investing in a rotating assembly that can withstand the intense cylinder pressures of high-compression or power-adder builds. The internal balancing reduces rotational mass vibration, which is critical for engine longevity at high RPMs. This crankshaft is an essential upgrade for any Big Block Chevy build intended for drag racing, pulling, or high-performance street use. Its robust design ensures it can handle the stress of aggressive driving, providing you with peace of mind on the track. For the best selection of engine components and expert advice, visit GGCRACING.

Product Details

Product Description

About Eagle

Eagle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eagle lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Eagle 4340 Forged Crankshaft for Big Block Chevy

Take your Big Block Chevy to the next level of performance with the Eagle 4340 Forged Crankshaft. With a substantial 4.750-inch stroke, this crankshaft is designed for serious engine builders who demand maximum displacement and torque. Constructed from premium 4340 forged steel, this crankshaft provides the structural integrity required to handle high-horsepower applications without sacrificing reliability.

Technical Specifications

  • Application: Big Block Chevy (BBC).
  • Stroke: 4.750-inch stroke.
  • Material: 4340 forged steel.
  • Balance: Internal balance design.
  • Seal Compatibility: 2-piece rear main seal.

The Eagle 4340 forged crankshaft is meticulously machined to ensure tight tolerances and perfect fitment. By choosing this forged component, you are investing in a rotating assembly that can withstand the intense cylinder pressures of high-compression or power-adder builds. The internal balancing reduces rotational mass vibration, which is critical for engine longevity at high RPMs. This crankshaft is an essential upgrade for any Big Block Chevy build intended for drag racing, pulling, or high-performance street use. Its robust design ensures it can handle the stress of aggressive driving, providing you with peace of mind on the track. For the best selection of engine components and expert advice, visit GGCRACING.

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